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. 2023 Apr 20;12(8):1722. doi: 10.3390/plants12081722

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Main steps in the determination of total phytosterols. IS (internal standard) TMS (Trimethylsilyl ether); HPLC (high liquid chromatography); GC (gas chromatography); NP (normal phase); RP (reverse phase).